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GCN Circular 1931

Subject
IPN triangulation of GRB030306 (two small error boxes)
Date
2003-03-06T19:50:13Z (21 years ago)
From
Kevin Hurley at UCBerkeley/SSL <khurley@sunspot.ssl.berkeley.edu>
K. Hurley and T. Cline, on behalf of the Ulysses and Mars Odyssey GRB teams,

I. Mitrofanov, D. Anfimov, A. Kozyrev, M. Litvak and A. Sanin,
on behalf of the HEND/Odyssey GRB team,

W. Boynton, C. Fellows, K. Harshman, C. Shinohara and R. Starr,
on behalf of the GRS/Odyssey GRB team, and

D. M. Smith, R. P. Lin, J. McTiernan, R. Schwartz, C. Wigger, W. Hajdas, 
and A. Zehnder, on behalf of the RHESSI GRB team, report:

Ulysses, Mars Odyssey (HEND and GRS), and RHESSI observed this GRB 
(GCN 1930) at 13102 seconds (Earth-crossing time).

We have triangulated it to two preliminary, 3 sigma error boxes whose 
approximate areas are 40 sq. arcmin. each and whose coordinates are:

    RA(2000)                              DEC(2000)
 ERROR BOX CENTER:  21 h 53 m 27.24 s    -10 o 52 '  14.24 " 
 ERROR BOX CORNER 1: 21 h 53 m 24.33 s    -10 o 50 '   7.63 " 
 ERROR BOX CORNER 2: 21 h 54 m  0.73 s    -10 o 51 '  12.32 " 
 ERROR BOX CORNER 3: 21 h 52 m 53.73 s    -10 o 53 '  17.74 " 
 ERROR BOX CORNER 4: 21 h 53 m 30.13 s    -10 o 54 '  20.87 " 

and

 ERROR BOX CENTER:  21 h 4 m 14.52 s     -74 o 21 ' 56.53 "
 ERROR BOX CORNER 1:  21 h  3 m 55.15 s    -74 o 23 '  44.85 "  
 ERROR BOX CORNER 2:  21 h  6 m  7.04 s    -74 o 25 '  19.24 "     
 ERROR BOX CORNER 3:  21 h  2 m 22.89 s    -74 o 18 '  28.49 "    
 ERROR BOX CORNER 4:  21 h  4 m 33.81 s    -74 o 20 '   8.06 " 

These error boxes lie approximately 18 and 71 degrees from the
Sun, respectively.  They can be improved, and, although neither
is Earth-blocked or Mars-blocked, it should eventually be
possible to determine which is the correct one.

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